Collapsible tube



Feb. 15, 1938. H. MocK COLLAPS IBLE TUBE Filed Feb. 10, 1957 N w MP4Patented Feb.15, 1938 OFFICE COLLAPSIBLE TUBE Hugo Mock, New York, N. Y.Application February 10, 1937, Serial No. 125,013

9 Claims. This invention has for its object an improvement incollapsible tubes, and more particularly has for its object to provide anovel form of the collapsible tube of the type made from tin or lead orlead tin alloys.

A particular object of the invention is the provision of a newiorm ofcollapsible tube which is made with but a single opening and in whichthe base and body form an integrally closed element. A further object ofthe invention is the provision of a novel form of collapsible. tube inwhichthe clamping device ordinarily'used to seal the ends of thecollapsible tube at the present time is transformed into a device whichnot only seals one portion of the tube but also acts as the duct oropening through which the contents of the tube are extruded.

Further objects of the invention will be apparent from the specificationand drawing, in which Fig. 1 is a perspective view of the ingot fromwhich the body of the tube is made. a Fig. 2 is a side elevation of thecompleted tube as extruded from the die.

Fig. 3 is a side elevation of a completed tube with its ends compressed.

Fig. 4- is a sectional view along the lines 4-4 of Fig. 3. 4

Fig. 5 Ba plan view of the metal clamping device in extended orinoperative position.

Fig. 6 is a sectional view along the lines 6-6 of Fig. 5;

Fig. 6a is an end view of the clamping device in operative position,that is, after the sides have been turned over the ends of the tube.

Fig. '7 is a side elevation partly in section showing'the clampingdevice applied to the ends of the tube.

g. 8 is a sectional view along the line 8-8 of Fig. 7.

Fig. 9 is a side elevation of the completed tube with clamping. deviceattached and provided with a cap. 7 r

ll indicates the body of the tube having the ends or pressed-in portionI2, in the center of which a small opening I3 is left.

I4 is a clamping device which may be stamped out 'of sheet metal havingthe corrugations or projections anda neck l6 made integral therewithhaving a thread i1.

I8 is a cap internally threaded to fit the neck 86, which cap may bemade of metal, synthetic plastic or any other suitable material.

I have endeavored inthis invention to provide a collapsible tube withonly one opening, so after obtaining a tube I I by means 02 the die Tand suitable form in order allel relation, and an forated so that thetube itself is both filled and emptied through the' same end of thetube.

After the walls of the'openend of the tube are compressed together, asmall opening is left therein, for extruding the contents of the samewhen the tu is compressed, and said opening extends within thecontiguous ends of the clamping device I 4 which is clamped over thesecompressed end walls by being bent along'the line G-6 shown in Fig. 5.The clamping deviceis preferably stamped from a sheet of suitable metalhaving a threaded neck l6 provided with 'an axial bore which is theopening -through'which the material in the tube is finally extruded. Theopening I 3 in the tube is formed by providing opposed bulged portions3a in the flattened end of the tube, as clearly shown in Figs. 3 and 7.

- The clamping member or clip I4 is initially flat,

as shown in- Figs. 5 and 6 with the neck I6 rising therefrom, and isthen bent in U shape similar to the configuration shown in Fig. 6a, andat this time the opposed parallel legs of the clamp or clip M areprovided with bulged portions l9 which are adapted to engage about thebulged portions l3a of the tube. I

The projections l5 may be corrugations of any to stamp the contiguousend'walls of the tubemore effectively, but may be changed or omittedwithout departing from the spirit of myinvention.

S shows the material or substance in the tube. The tube may be filledprior to compressing the open and contiguous end walls together or maybe filled after the entire 'tube is completed.

. It is apparent that considerable economies are l effected by this formof tube in which the clamping device serves a. double function and amatter and more attractive tube is produced.

Having fully described my invention, what I, claim is: I

1. A collapsible tube having a cylindrical body and a rounded bottomclosing said tube and integral with said body, the ends of the openportion of said tube being compressed together, said ends havingconfronting bulged portions, a clamping piece forcing said ends togetherin paropening in said clamping piece alining with said bulged portionsby which the contents of said tube may be extruded.

2. -A collapsible tube comprising a substantially cylindrical bodyprovided with one end thereof closed and the opposite end open, saidopposite .bulged to provide a discharge opening, and a apart detents anda discharge neck engaging about said bulged wardly thereof.

3. In a clamping device for a collapsible a body of metal bent in thecenter thereof to form two adjacent side walls, an. opening in said bodyalong said center, said side walls being concave adjacent said opening.

4. A clamping devicefor a collapsible tube comprising 'a clip fittingover the open and com pressed end of the tube, an opening in said clip,the walls of said opening being bulged so as to provide a passagethrough which the contents of the tube may be extruded.

5. In a clamping device for a collapsible tube, a body of metal bent toform two adjacent side Walls, an opening in said body in line with theedges of the open and compressed end of the tube, said side walls beingbulged or concave ad- Jacent said opening. 7

6. A collapsible tube comprising a substantially cylindrical body havingone end thereof compressed to provide parallel walls, said wallshavportions and projecting outing an opening therebetween, a clipfitting over said compressed end and having an opening registering withthe opening in said tube by which the contents of the tube may beextruded, a discharge member integral with said clip provided comprisinga clip made of tube,

said clamping member disposed axially discharge member.

'7. A clamping device for a collapsible tube sheet material bent insubstantially U-shaped form to compress one end of the tube, said cliphaving an opening therein and said tube having an opening registeringwith the opening in the clip through which the con-- tents of neck onsaid clip, and said neck.

8. A clamping device for a collapsible tube comprising a sheet metalbody bent in the middle to form two adjacent side wa1ls, said bodyhaving a central opening, a cap formed on said body adjacent saidopening and integral therewith adjacent said opening, said cap beingthreaded to receive a closure for said opening.

9. As a new article'of manufacture, a combined clamping and outlet meansfor a collapsible tube the tube may be extruded, a threaded a detachableclosure for and a closure for said comprising a clamping member U-shapedin transverse section having a discharge opening in the bight thereofadapted to register with a discharge opening formed in the compressedwalls of the tube, a neck carried by the bight of of said opening, and acap for said neck, the parallel walls of said clamping member firmlygripping therebetween the compressed walls of said tube.

A HUGO MOCK.

